3/30/2025 Tonga 7.1

Earthquake DetailsSeismogram Explanation
Location: TongaPdiff-wave: not verified
Date: March 30 2025Sdiff-wave: not verified
Time: 12:18:43 UTC; 7:18:43 am CSTThe vertical axis is in units of displacement in centimeters.
Latitude: 20.42 SThe horizontal axis is in units of time in seconds.
Longitude: 173.77 WThe beginning of the file is the origin of the event.
Magnitude: 7.1 Mw 
Depth: 23.5 km 
Distance: 100.90 degrees (~6,830 miles from Milwaukee) 

 

UWM Land Acknowledgement: We acknowledge in Milwaukee that we are on traditional Potawatomi, Ho-Chunk and Menominee homeland along the southwest shores of Michigami, North America’s largest system of freshwater lakes, where the Milwaukee, Menominee and Kinnickinnic rivers meet and the people of Wisconsin’s sovereign Anishinaabe, Ho-Chunk, Menominee, Oneida and Mohican nations remain present.   |   To learn more, visit the Electa Quinney Institute website.